(KTEN) — Three men linked to Swadley's Foggy Bottom Kitchen were indicted Thursday on charges of conspiracy to defraud the State of Oklahoma.

The state terminated a multi-million dollar contract with Swadley's to provide restaurant services at Lake Murray State Park and five other state parks in 2022 on the grounds of "suspected fraudulent activity."

The indictment handed down by the Multicounty Grand Jury alleges that Ronald Brent Swadley, Curtis Ray Breuklander and Timothy Raymond Hooper conspired to present false and inflated invoices to the state for payment.

Among other allegations, the indictment alleges that the defendants "...directed a specific restaurant equipment supplier to create invoices with increased amounts for restaurant equipment..." Those falsified invoices were then presented to the state Tourism Department for payment.

“The indictments issued today contain serious charges and will be prosecuted by my office on behalf of the People of Oklahoma,” said Attorney General Gentner Drummond in a written statement.

A review of invoices by the nonprofit journalism outlet The Frontier showed Swadley's charged extra fees on top of some expenses, including $546,890 in additional management and consulting fees on invoices for equipment and renovation costs between May and August 2022.

Swadley's had been contracted to provide restaurant services at state parks in 2020. The company filed a motion in advance of the indictments earlier this week.